//
//  NSNull+NSString.m
//  TravelGuideMdd
//
//  Created by 陈曦 on 13-8-23.
//  Copyright (c) 2013年 mafengwo.com. All rights reserved.
//

#import "NSNull+NSString.h"

@implementation NSNull(NSString)

- (BOOL)isEqualToString:(NSString *)aString
{
    return NO;
}

- (NSUInteger)length
{
    return 0;
}

- (id)objectForKey:(NSString *)aString
{
    return nil;
}

@end
